bis(η3-allyl-μ-chloropalladium(II)); tri-tert-butyl phosphine; 4-nitrobenzaldehdye; lithium tert-butylate in toluene T=120°C; 10 h; Inert atmosphere;

Stage #1: With  n-butyllithium; tri-isopropoxy-borane in  tetrahydrofuran; toluene T=-78 - 20°C;  Inert atmosphere; Stage #2: With  hydrogenchloride in  water T=0°C;